Brake



@mm 39 192. L. E. LA BRIE l 1,875,030

` BRAKE Filed Feb. 25, 192s IN V EN TOR.

LILBJYDGER E. LARsE A TToRN erably embod Patented Aug. 30, 1932 PATENT ol-Flcl-z LUIX'iEIRv E. LA BRIE, 0F SOUTH BEND, INDIANA,

PANY, F BDUTH BEND, INDIANA, A

AlIGNOB TO BENDIX BRAKE COI- `BPOB-ATION 0l' ILLINOIS Application led February 85, 1929. ySerial item89. I

This invention relates to brakes, and is illustrated as embodied in an internal expanding brake for an automobile. An object of the invention is to provide a simple self-adjusting anchorage for the brake, refying a novel compression 'nkf age suitable for use in a brake having overlapping shoes. I prefer to use a single anchor post linked to the overlapping shoes, and arranged to serve as a positioning stop engaged by both lshoes when the brake is released, the anchor being placed in the angle between the shoes to give it this double function.

The above and other objects and features of the invention, including various novel and desirable details of construction, will be apparent from the following description of one illustrative embodiment shown inthe accompanying drawing, in which:

Figure l is a ver-tical section through the brake, just inside the vhead of the brake drum, and showing the brake shoes in side elevation;

Figure 2 is a partial section through the anchorage, on the line 2 2 of Figure 1;

Figure 3 is a partial section through the anchor post and through the overlapping ends of the shoes, on the line 3-3 of Figure 1; and

Figure 4 is a partial section on the line 4 4 of Figure 1, showing the Heating pivot connecting the primary and secondary shoes.

The illustrated brake includes a rotatable drum 10, at the open side of which is a support such as a backing plate 12, and within which is the brake friction means, including for example three shoes 14, 16, and 18. The brake is applied by means such as a double :am 20, acting against the resistance of return springs 22 to apply shoes 14 and 18, shoe 16 being applied by shoe 14 to which it is :onneeted by a floating pivot 24. The present invention relatesto the anchorige of the brake, and while well adapted for Jse in a brake of the three shoe type such as lescribed above it is not limited to such use 1nd may be embodied in other types of brakes. ln the particular embodiment illustrated, ;here is a single fixed anchor post 30, carried sti'ening web of shoe 18, o

and these overlapped portions of the shoes engage anchor when the brake is released, the anchor 30 thus serving also as a positioning stop determining the released positions of the anchored ends of shoes 16 and 18.

The shoe 18 is held by the upper return spring 22 against cam 20 and anchor 30, when released, while the released position of the anchored end of shoe 16 is determined by an auxiliary spring urging it to a position determined by anchor 30 and link 32. Thus the links 32 and 34 are freely pivoted at both ends andA yet the released positions of shoes 16 and 18 are positively determined.

While one illustrative embodiment has been described Ain detail, it is not my intentionto limit the scope of the invention to that particular embodiment, or otherwisek than by lthe terms of the appended claims.

I claim:

1. A brake comprising, in combination, a pair of shoes one of which has at its end spaced portions embracing and overla ping the end of the other, a fixed anchor 1n the angle between the overlapping ends of the shoes and arran ed to serve as a stop engaged by both shoes w en the brake is released, and means connecting said anchor to both shoes.

2. A brake comprising, in combination, a pair of shoes one of which has at its end spaced portions embracing and overlapping the end of the other, a fixed anchor adjacent the overlapping ends of the shoes and means connecting said anchor to both shoes.

3. A brake comprising, in combination, a pair of shoes one of which has at its end spaced portions embracing and overlapping the end of the other, a fixed anchor in the angle between the overlapping ends of the shoes and arranged to serve as a stop engaged 2 y 1,`a75,oso

by both shoes when the brake is released, and a compression link connecting each shoe to the anchor.

4. A brake comprising, 1n comblnatlon, a.

v 5 pair of shoes one of which has at its end spaced portions embracingand overlapping7 the en'd of the other, a fixed anchor adjacent thejoverlapping ends of the shoes, and a compression link connecting each shoe to the 5. A brake comprising, in combination, a

pair of shoes having adjacent ends, anchorage s means adjacent said ends'and serving as a f s stop en aged by said ends when thev brake is 15 release and means connecting the shoes to the anchor. f A

6. Abrake comprising, in combination, a

pair of lshoes having adjacent ends, anchorage .3

means adjacentsald ends and serving as a stop en "aged by said ends when the brake is ,releasei'and a compression link connecting each shoetothe anchor. s j 7. Av brake comprising, in combination, a y pair of shoes havin overlapping ends eny ga y'ngaiixed stopw en the brake isreleased, j ani'compressionanchor links-engagingr the shfes some distance from .the .overlapping ens. j c

8;`A brake comprising, in combination, a s air of shoes havin overlappingends engagv 'ing a xed; stopfwenfthe brake is released,

vand torque-taking'. means engaged by the .j i, y

ls. j

shoes some distance'from-said en p Y ,s 9. Ajbrake comprisin ,"in combination, a V,pair 'of shoeshavin ove ppinglpends engaging a Vfined s tlopavvr en'thegbrake is released, i and ivoted tor 11e-takin 1meansfeng`a ed by V,the `s oess'omegiistance. rom said end transinittingyrthetorque to' vaflxed anch'or. 4D 10,., Abra ye havinga pair of overlapping shoes linkedfsonie distance from their ends toa fixed anchorage adjacent said ends. g 1v1. A brake having a pair fof overlap ing y. lshoes linked some distance from their ends tol a common yfined anchor adjacent said ends. 12;]AV brake havinga pair of overlapping f shoes' linked some distance fromy their `ends rtoacommon xedanchor. Y 'j j f 4 A13. A brake having a pair vof overlapping 50 shoes linked some distance from their ends to a fixed anchorage. 1

"In testimony ywhereof, lIhave herento y slgned my'pname. i 1' s 55 f LUI)GIIRE."LATBRIE.k

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